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Andrew Gegeu
New User
Jan 3, 2011, 5:23 PM
Post #1 of 9
(2254 views)
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Hi all,
I need a trouble shooting help to find out about my cars engine fault regarding what is the engine problem..
Year of vehicle : 1995
Make of vehicle : Toyota Crown
Model of vehicle : Royal Saloon
Engine size : 3.0l
Mileage/Kilometers : 120 998
The stop work ing all of a sudden more than six months ago.
Symptom: it will crank but without the engine actually start. there are lttile smoke coming out of the exhaust if you turn the distributor to advance.... then if you leave it for a while then start cranking it again it show a sign of picking up but then die down to normal cranking...
can you you give me some tips of the possible cause????
Cheers
Andrew
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Hammer Time
Ultimate Carjunky
/ Moderator
Jan 3, 2011, 5:45 PM
Post #2 of 9
(2242 views)
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I don't know why your messing with the distributor but you just added another issue that will have to be corrected.
All "crank, no start" conditions are approached in the same way. Every engine requires certain functions to be able to run. Some of these functions rely on specific components to work and some components are part of more than one function so it is important to see the whole picture to be able to conclude anything about what may have failed. Also, these functions can ONLY be tested during the failure. Any other time and they will simply test good because the problem isn't present at the moment.
If you approach this in any other way, you are merely guessing and that only serves to replace unnecessary parts and wastes money.
Every engine requires spark, fuel and compression to run. That's what we have to look for.
These are the basics that need to be tested and will give us the info required to isolate a cause.
1) Test for spark at the plug end of the wire using a spark tester. If none found, check for power supply on the + terminal of the coil with the key on.
2) Test for injector pulse using a small bulb called a noid light. If none found, check for power supply at one side of the injector with the key on.
3) Use a fuel pressure gauge to test for correct fuel pressure, also noticing if the pressure holds when key is shut off.
4) If all of these things check good, then you would need to do a complete compression test.
Once you have determined which of these functions has dropped out,
you will know which system is having the problem.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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mdaniel
User
Jan 3, 2011, 6:50 PM
Post #3 of 9
(2236 views)
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To add to what has already been said; You really don't want to start trying to mess with the timing on vehicles older than say mid to late 80's. The on board PCM takes care of this and it will screw things up if you start messing with it.
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Andrew Gegeu
New User
Jan 3, 2011, 7:31 PM
Post #4 of 9
(2229 views)
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Re: Toyota Crown
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Sign In
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Thanks for the reply,
just recently I got one Mech from Ela motors to diagnose the problem and result is as follows:
- Fuel pump is working OK giving enough fuel pressure
- Spark firing is Ok
- Engine Timing is Off- He needs accurate timing mark to reset can you advise??
- ECU box show a physical sign of sorting which have been correted already by a techician... and test for connectiivity proves +..
- And Air flowmeter has been changed....
can you advise????
Andrew
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re-tired
Veteran
/ Moderator
Jan 3, 2011, 8:03 PM
Post #5 of 9
(2215 views)
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First things first. Mcdaniel , why in the world are you giving technical advise in one post when you admit little knowledge of the subject in another
"Ditto, totally agree.
Probably time to get this truck to a pro.
No insult indented, just stating facts.
Some things a novice can do and some they can not."
HAMMER is a "PRO" and has given needed advise , Thanks anyway.
LIFE'S SHORT GO FISH
(This post was edited by re-tired on Jan 3, 2011, 8:07 PM)
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Hammer Time
Ultimate Carjunky
/ Moderator
Jan 3, 2011, 8:05 PM
Post #6 of 9
(2213 views)
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That's not an American sold car so I don't have any info on it. If you suspect a timing problem, you need to do a compression test.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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re-tired
Veteran
/ Moderator
Jan 3, 2011, 9:46 PM
Post #8 of 9
(2185 views)
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..."that's mdaniel to you."
"Some things a novice can do and some they can not"
I apoligize for the misspelled name.LOL
LIFE'S SHORT GO FISH
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Hammer Time
Ultimate Carjunky
/ Moderator
Jan 4, 2011, 4:07 AM
Post #9 of 9
(2176 views)
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He's OK RT..........
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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